<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style type="text/css">
		
		p[class$="o"] {
			color: red;
		}

	</style>
</head>
<body>
	 <div class="one">文字</div>
	 <p class="one">段落</p>
	 <p class="two">段落2</p>
</body>
</html>